<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.box {
				display: flex;
				height: 300px;
				background-color: antiquewhite;
			}

			.dv {
				flex: 1;
				border: 1px solid orange;
			}

			.dv:nth-child(2) {
				flex: 2;
				display: flex;
				flex-direction: column;
			}

			.top {
				display: flex;
				/* background-color: red; */
				flex: 1;
				justify-content: space-around;
				align-items: center;
			}

			.bottom {
				background-color: green;
				flex: 2;
			}

			span {
				height: 60px;
				width: 60px;
				background-color: cornflowerblue;
			}
		</style>
	</head>
	<body>
		<div class="box">
			<div class="dv">左</div>
			<div class="dv">
				<div class="top">
					<span>1</span>
					<span>2</span>
					<span>3</span>
					<span>4</span>
					<span>5</span>
				</div>
				<div class="bottom">下</div>
			</div>
		</div>
	</body>
</html>
